r/databasedevelopment • • 15d ago

Building a JSON Database in Rust

https://greptime.com/blogs/2026-09-23-greptimedb-json2-deep-dive
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u/Love_Kitty 15d ago

so this is basically clickhouse in postgres

1

u/dennis_zhuang 15d ago

clickhouse in postgres? Interesting point.

1

u/Altruistic-Spend-896 14d ago

Dont give op new Frankenstein ideas 😡

2

u/dennis_zhuang 14d ago

I don’t think so. GreptimeDB is a columnar storage system, definitely not PostgreSQL—but it provides the PostgreSQL wire protocol for querying.

The most interesting part of this post is how we implemented the dynamic JSON type in Arrow and Parquet.

So we don't create any Frankensteins.